Method of manufacturing an aluminum substrate thick film heater
First Claim
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1. The method of making a resistive element heater comprising the steps of:
- forming a metal substrate from metal stock having a CTE greater than 16×
10E−
6/°
C.;
roughening the surface of the metal substrate;
applying ceramic oxide dielectric powders by thermally bonding onto the roughened surface forming a densified dielectric layer;
printing a thick film resistive layer on said dielectric; and
applying ceramic oxide overcoat by thermally bonding onto the said resistive layer and said dielectric layer.
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Abstract
A thick film resistive element heater is shown with an aluminum substrate having a ceramic oxide dielectric insulator there between.
21 Citations
6 Claims
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1. The method of making a resistive element heater comprising the steps of:
-
forming a metal substrate from metal stock having a CTE greater than 16×
10E−
6/°
C.;
roughening the surface of the metal substrate;
applying ceramic oxide dielectric powders by thermally bonding onto the roughened surface forming a densified dielectric layer;
printing a thick film resistive layer on said dielectric; and
applying ceramic oxide overcoat by thermally bonding onto the said resistive layer and said dielectric layer. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification